7-Bromo-6H-benz[cd]azulen-6-one, 7-Chloro-6H-benz[cd]azulen-6-one and its derivative were prepared in four steps starting from tetrahydroacenaphthene. Formation of the corresponding cations in strong acid is suggested on the basis of 1H NMR and UV spectra.
BENZIMIDAZOLE COMPOUND AND PHARMACEUTICAL USE THEREOF
申请人:Nakano Masakazu
公开号:US20100120841A1
公开(公告)日:2010-05-13
Provided is an ORL-1 receptor agonist having improved bioavailability based on superior metabolic stability and strong and high selectivity, as compared to conventional compounds. A compound represented by the formula (I)
wherein each symbol is as defined in the claims.